NEW YORK - A former CIA official who advised President Barack Obama on South Asia has warned of a "serious possibility" of Pakistan being taken over by what he called "Jihadists". "The possibility of Pakistan being taken over by "Jihadists" is a real one," Bruce Riedel said in the course of CBS' "60 Minutes" programme aired on Sunday in which President Asif Ali Zardari also said that the Taliban was trying to take over the country. Extracts from President's interview were released by CBS on Friday, ahead of the programme, entitled, "War in Pakistan ." Also, Frontier Corps Inspector General Major General Tariq Khan said on the programme that the Taliban is the enemy and must be dismantled and destroyed. Responding to a question from correspondent Steve Kroft of 60 Minutes about Pakistan falling under the influence of Islamic radicals, Riedel, who is currently a senior fellow at the Brookings Institute, said, "I think a decade ago most experts would have said it'll never happen. I think today most experts would say it's a possibility. It's become a serious possibility." Gen Tariq Khan, the FC chief, described the tough battle to regain the control of Bajaur region from the Taliban, saying, "We had to fight compound to compound. And every inch, we had to take a hit." "We considered Bajaur to be the center of gravity, from where the militants had access to Afghanistan," he said, stressing the strategic importance of the region. Gen Khan told Kroft, who was shown visiting him in Bajaur, that he was surprised by the enemy's numbers and their intensity. "The kind of tenacity. The need to hold onto ground. There were no surrenders. As much as people willing to die." Kroft said, "They (Pakistani commanders) took us to a former Taliban command post less than ten miles from the Afghanistan border to show us what they had been up against. Inside the mud walls and beneath the compound was an intricate set of tunnels. "The tunnels in the area not only were connected to underground rooms, but to other compounds, and were deep enough to withstand artillery fire. The tunnels took years to build, an indication of how long the Taliban were allowed to flourish in Bajaur..." Asked whether it was a mistake not going after the Taliban earlier, Gen Khan said, "I think we should have nipped the evil in the bud much earlier. We dilly dallied, we hoped that it would go away." He said the Taliban is their enemy now. "They have to be dismantled. They have to be destroyed." Kroft said the Pakistani commanders also walked the 60 minutes team up a steep hill to point out one of their outposts that was attacked by 600 Taliban soldiers just last week. A commander told Kroft it was the biggest attack that they had ever faced there in which 110 Taliban soldiers were killed that night, with only six losses to their side. "This was most probably a kind of last ditch effort by them," one commander said. Riedel, the former CIA analyst, said, "This is unprecedented to have this many Pakistani troops there. Unfortunately, almost all of them are not trained in counter-insurgency warfare. They're trying to use the tactics that they would use against the Indian Army, armoured warfare, against an enemy that is an unconventional force." Asked how successful he thinks Pakistan 's tactics have been, Riedel told Kroft, "Most of the success has been along the main road. Once you get off the main road, you get into rural villages, there's very little lasting effectiveness." The destruction caused by militants inside Pakistan , including the Marriott Hotel and other targets, was also shown on the programme, and correspondent Kroft said the militants' threat was growing. When Kroft drew Riedel's attention to President Zardari's statement that the war on terrorism was now Pakistan 's war, the former CIA official said, " He (Zardari) understands it's his war now. He has yet to convince most Pakistanis that it's their war. The overwhelming majority of Pakistanis see this as America's war, They haven't bought into the notion that this is a threat to them yet." Correspondent Kroft also noted that the growing anti-American feelings against by US attacks on Pakistan 's soil using unmanned predator drones. "If we do that in America, will you accept it? So if you feel it is wrong, we are also human being. We also feel that whatever you are doing, it is inhuman," said Khalid Khawaja, a former Pakistani intelligence officer, who was described as a friend of the al-Qaeda leader Osama bib Laden. Asked when he last spoke to Osama bin Laden, Khawaja, after a long pause, said, "It's a long time back." "Where do you think he is?" Kroft asked. "See, even if I know, I will never tell you so this is a question that shouldn't, you shouldn't ask me this question," Khawaja replied. "Do you think Zardari will aggressively go after Osama Bin Laden?" Kroft asked. "I don't think that Zardari has any power," Khawaja said. "Zardari is only a puppet of United States here. He's here only because of United States wanted him to be planted here."